I have installed iFilter 9 for 64-bit on a 64-bit Windows Server 2008 R2. As soon as it was installed I started seeing thousands of folders in the root of c: with the names like A9R1aa0-e3efao. I uninstalled iFiler 9 and the folder creation stopped. I deleted all of the folders and reinstalled iFilter 9 and the folder creation started again. Each folder has one E-mail converted to a PDF file. We have an Exchange server on a different box and it appears that the iFilter is accessing this server and recreating all E-mail on the server that the iFilter is installed on. How can I stop this from occuring?

Did you ever find out what the deal was? I am having a similar issue. Thousands of directories are being created and what's even more scary is that I cannot find the original files anywhere else. There is now nearly 80k files inside random directories on the root of my server.